کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10480908 933005 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Remanent quantum correlations in dissipative qubits
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Remanent quantum correlations in dissipative qubits
چکیده انگلیسی
Starting from the exact evolution of a Markovian dissipative quantum walk, a non-Markovian decoherence of two qubits interacting with a phonon thermal bath has been investigated analytically using quantum information tools. Concurrence and quantum discord are affected in a complex way, showing that entanglement decreases with dissipation. At the limit where dissipation dominates, quantum correlations survive in time as ∝t−1/2. Thus, even under the influence of dissipation, two qubits retain their quantumness for a long time. Quantum correlations could be therefore observed for a long time in related photonic experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 392, Issue 23, 1 December 2013, Pages 6155-6160
نویسندگان
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